Science

Monday, 2 November 2026
13 facts about tears
13 facts about tears
Multipurpose liquid
Associated with emotions, tears are a product of lacrimal glands, found in the eyes of most terrestrial vertebrates. Although their primary function i ...

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Cosmos
Each object in the sky is observed with a delay.
The farther away the celestial body is from the observer, the longer the light emitted or reflected ...
Cosmos
The observable universe is estimated to be 13.8 billion years old.
The limit of error in the calculation is 21 million years.
Cosmos
The Solar System is located in the Milky Way.
Our galaxy ranks rather average, its diameter is 100 to 120 thousand light years. Perhaps a unique f ...
Amber
There was a chamber decorated with six tonnes of amber, known as the Amber Room.
Created for Frederick I of Prussia at the beginning of the 18th century, it was given as a token of ...
Enceladus
It is the sixth-largest moon of Saturn.
Silver
Silver compounds are toxic to bacteria, viruses, fungi and algae.
Compounds of other heavy metals, such as copper, lead, or mercury, also have such properties, but si ...
Graphene
Since the beginning of the 21st century, many companies and research laboratories have been working on developing commercial applications of graphene.
In 2014, the National Graphene Institute was established at the University of Manchester for this pu ...
Milky Way
Its diameter is from 100 to 120 thousand light years.
It is therefore a relatively large galaxy, although some cosmic giants may dwarf it in size. IC 1101 is about 20 times larger than the Milky Way, with a diameter of 2 million light-years.
Silver
Silver is also used in medicine. Its healing properties were already described by Hippocrates.
Its importance in medicine lies in the use of strong antibacterial properties. Before antibiotics were available, silver compounds were used to prevent infections during World War I.
Phobos
The largest impact crater on the surface of Phobos is called Stickney, its diameter is up to 10 kilometers.
It was named after Asaph Hall’s wife, Chloe Angeline Stickney Hall, a mathematician. A collision that formed Stickney crater could have shattered the moon.